函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\events\core.c Create Date:2022-07-27 14:55:09
Last Modify:2022-05-20 07:50:19 Copyright©Brick
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函数名称：arch_perf_update_userpage

函数原型：void __weak arch_perf_update_userpage(struct perf_event *event, struct perf_event_mmap_page *userpg, u64 now)

返回类型：void

参数：

类型参数名称
struct perf_event *event
struct perf_event_mmap_page *userpg
u64now

NULL

调用者
名称描述
perf_event_update_userpageCallers need to ensure there can be no nesting of this function, otherwise* the seqlock logic goes bad. We can not serialize this because the arch* code calls this from NMI context.